JP3524946B2 - Shaving equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an outer shaving member,
The outer shaving member has an inner shaving member rotatable with respect to the outer shaving member, and the outer shaving member is provided with an annular wall portion having a thin plate extending in a substantially radial direction and having a hair insertion hole in each gap. The shaving member has a cutter having a cutting edge that delimits a path adjacent to the inside of the annular wall portion of the outer shaving member, and a support carrying the cutter.
A shaving device comprising at least one shaving unit.

[0002]

Such a shaving device is known from US Pat. No. 5,033,315.

[0003]

In this known shaving apparatus, the portion of each cutter contacting the inside of the annular wall portion of the outer shaving member is generally rectangular in cross section and the wide rectangular side piece has a substantially radius. Is oriented in the direction. When viewed in the rotating direction, the top of this rectangle often causes the skin protruding from the hair entry hole to be damaged rather than the center of the cutter. For this reason, the thickness of the thin plate must be larger at the end position of the cutter than at the central position of the cutter. As a result, only a degree of adhesion lower than the desired degree of adhesion can be obtained.

An object of the present invention is to obtain a shaving apparatus capable of performing a close shave in a shorter time without increasing the risk of damaging the skin.

[0005]

To achieve this object, a shaving apparatus according to the present invention comprises a continuous ring in which the cutter and the cutting edge forming its axial end together form a single corrugation. Forming a shape. The advantage of the shaving device according to the invention is that the cutter
It has no crests that can hurt the skin anymore, thus reducing the thickness of the lamella near the radial end of the cutter, allowing for a tighter shave. An additional advantage is that the likelihood of sheet breakage is reduced.

DE-A-1816867 discloses a shaving device with a corrugated ring-shaped cutter. However, in this known device, the outer shaving member is formed by a cylindrical semi-circular foil, while the inner shaving member is a shaving cylinder with a number of cutter discs, the cutter discs being the axis of rotation of the shaving cylinder. The corrugated cutter of the cutter disk, which is orthogonal to, has a curve corresponding to a cylindrical semi-circular foil.

In the preferred embodiment of this shaving system, the cutter is substantially orthogonal to the path of the cutting edge.
It was found that the angle of the cutter with respect to the path of the cutting edge affects the degree of irritation to the skin. It has been found that an acute angle between the cutter and the outer shaving member is more likely to damage the skin than a right angle, while a right angle gives satisfactory shaving behavior.
In this case, it is possible to reduce the thickness of the thin plate.

[0008]

Embodiments of the shaving apparatus according to the present invention will be described in more detail with reference to the drawings. The shaving device has a housing 1 provided with three shaving units 2. The shaving unit 2 has an outer shaving member 3 and an inner shaving member 4 rotatable with respect to the outer shaving member. In a known manner, the inner shaving member, not shown, can be driven by an electric motor housed in the housing.

The outer shaving member 3 has a generally annular wall portion 5. The inner side of the outer shaving member has an annular groove 6 (see FIG. 3) at the position of the wall portion 5. The wall part 5 is constituted by lamellas 7, which extend in a substantially radial direction and form a hair-entry hole 8 between the lamellas. Inner shaving member 4
Has a support 9 carrying a cutter 10. The cutter has a cylindrical wall portion with a continuous corrugated shape corresponding to a circle. At the axial end, the corrugated wall portion,
It has a number of cutting edges 11, said cutting edges also having a continuous corrugated shape, describing a path adjacent to the bottom surface 12 of the groove 6 of the outer shaving member 3, which groove is formed by the lamella 7. To be done. Inner shaving member 4
Is driven by an electric motor about an axis of rotation 13, which axis is orthogonal to the wall portion 5 of the outer shaving member 3 in which the hair follicle 8 is formed.

FIG. 4 shows diagrammatically a shaving unit 2 with a slightly different corrugated cutter 10. This cutter has 90 undulating corrugations and therefore
It has 90 cutting edges 11.

[Brief description of drawings]

FIG. 1 is a perspective view of a shaving apparatus having three shaving units.

FIG. 2 is an enlarged perspective view of an outer shaving member and an inner shaving member used in the shaving unit shown in FIG.

3 is a cross-sectional view of the shaving unit shown in FIG.

FIG. 4 is a diagrammatic plan view of a shaving unit with cutters having slightly different corrugations.

[Explanation of symbols]

1 housing 2 shaving unit 3 Outside shaving member 4 Inner shaving member 5 wall part 6 groove 7 thin plate 8 hair entry holes 9 Support 10 cutter 11 Cutting edge 12 Bottom 13 axis of rotation

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jacobs Nikolaas Decker Dutch country Drachten Olly Morenstraat 5 (72) Inventor Dil Hendrick Wafers Dutch country Drachten Ollymolen Strath 5 (58) Field of study (Int.Cl. ⁷ , DB) Name) B26B 19/14

Claims (2)

(57) [Claims] 1. A thin plate having an outer shaving member and an inner shaving member rotatable with respect to the outer shaving member, the outer shaving member extending substantially in a radial direction and forming hair insertion holes in respective gaps. A cutter having an annular wall portion having an inner shaving member, the inner shaving member having a cutting edge describing a path adjacent to the inner side of the annular wall portion of the outer shaving member.
A shaving device comprising at least one shaving unit having a shaving unit and a carrier carrying the same , a cutting end constituting a cutter and its axial end
A shaving apparatus characterized in that the edges together form a continuous ring shape that forms one corrugation as a whole. 2. The shaving apparatus according to claim 1, wherein the cutter is substantially orthogonal to the path of the cutting edge.